Eta Hubble

[Peter.M]

I have been working on a vela snr shot but last night I decided on doing a quick eta. It has come out surprisingly good probably because of its brightness. This is 1 hour of ha and 30 minutes of s2 and o3. The Tiff on my computer is amazingly sharp and uploaded images don't do it justice. I have gone for a more subtle "natural" Hubble palate I will probably do a more traditional one later today.

larger ha
http://www.astrobin.com/full/30533/?mod=none

larger hubble
http://www.astrobin.com/full/30534/?mod=none

[RickS]

Very good for only a couple of hours of NB data!

[Larryp]

Nice work, Peter.Love the coloured one!

[Ross G]

Great looking capture Peter.

It is very sharp and detailed.

Ross.

[dvj]

Wow, very nice. Is that the scope? A 6-inch f/5?

[Rigel003]

Very nice Peter - the Ha especially.

[Peter.M]

Yes I was very happy myself.


I am still at odds with the processing, I will be trialing many different methods tonight.


I am very happy with the stability of my carbon tube, all 6 subs (over 2 hours) are within 0.4 in FWHM.


Yes this was taken with my 6 inch f5 on the heq5pro.



Hope your filterwheel is fixed soon so we can do some imaging together, especially since you have your new scope!

Thankyou everyone for your responses!

[strongmanmike]

Great result Peter, you might try to bring back a little detail in the blue regions near the keyhole? I think your processing may have smoothed it out a bit there? Still, it looks beautiful :thumbsup:

Mike

[Peter.M]

I actually processed this in 10 minutes before I went to work this morning. Probably not recommended for getting the most out of your images :) ! I have been reading how different people process their images to better my skillset. Thankyou for the constructive criticism!

[alistairsam]

That's really nice Peter, love the sharpness
I keep wondering, is it the mirror or the rigidity of your cf tube or both
How long were your subs
Do you have a similar one with your 8inch f4? Would love to see comparison of both ota's

[Peter.M]

The subs are 10 minutes long, I do have a shot from my 8 inch but it was one of the first shots I ever did. Thus comparison is not great. The one thing I can say about rigidity is that my guider is one of orions finder guiders. It is attached to the tube with a regular finder bracket and is held in place with an O ring and 3 screws. With my 8 inch guiding was impossible until I switched to an OAG, with my carbon tube it just works. I have improved my polar alignments and kitted out my mount with a belt drive since the new scope too so I cant say that it is all the carbon tube, but it may have played a role.

[Peter.M]

I captured a few more subs last night and processed my hat off. I am still new to narrowband imaging, and getting colours the way I like them and into a good luminance layer are still giving me trouble. This will have to do for now. The second night was very still and I had subs coming down with FWHM values of 3.4, being that I am guiding with a finder guider and that my image scale is 1.49 arc seconds per pixel I am very happy with this.

hubble large
http://www.astrobin.com/full/30630/?mod=none

HA large
http://www.astrobin.com/full/30631/?mod=none

[Peter.M]

This is my last effort at it, I am amazed with this little scope that I built.

hubble
http://www.astrobin.com/full/31473/?mod=none

http://www.astrobin.com/full/31474/?mod=none
Ha mono

Should do some darks for my dark column or clone it out, but oh well

[LAW]

:eyepop: Wow, that is stunning.

I'm loving this "Hubble Collection" you've got going on. :thumbsup:
Seriously impressive stuff.

[Meru]

A-mazing Peter! Beautiful work, they are some lovely images no doubt. What's your workflow in terms of editing the raw data?

[Larryp]

Magnificent work, Peter!

[Peter.M]

Thanks, I wouldn't be doing so much hubble work if I had had some new moon time up my sleeve! Hopefully next weekend is kind to me!



My process is just made up as I go along but usually I stack the frames and combine them into a master colour image in maximdl, I then align the HA and this colour image in maxim.

I stretch the colour in PS with preference to the blue and red to make the histogram about the same shape as the green.

I then layer the HA ontop as luminance. The HA usually has some masked high pass filtering done to it, and then it is sharpened using "smart sharpen"

I adjust the saturation of the colour layer to taste and thats it.

[MrB]

Very impressive Peter!

What is the total exposure time now?

[marc4darkskies]

Very nicely done indeed Peter! :thumbsup:

Cheers, Marcus

[Peter.M]

Thanks B, Its 100 minutes HA and 70 minutes for each of S2 and O3.




Much appreciated Marcus, :D